Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The camera optical lens further satisfies specific conditions.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese PatentApplications Ser. No. 201711151186.0 and Ser. No. 201711151181.8 filedon Nov. 18, 2017, the entire content of which is incorporated herein byreference.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

(Embodiment 1)

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 6 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. Optical element like optical filter GF can be arranged betweenthe sixth lens L6 and the image surface Si. The first lens L1 is made ofglass material, the second lens L2 is made of plastic material, thethird lens L3 is made of plastic material, the fourth lens L4 is made ofplastic material, the fifth lens L5 is made of glass material, and thesixth lens L6 is made of plastic material.

Here, the focal length of the whole camera optical lens 10 is defined asf, the focal length of the first lens is defined as f1. The cameraoptical lens 10 further satisfies the following condition: 0.5

f1/f

10. Condition 0.5

f1/f

10 fixes the positive refractive power of the first lens L1. If theupper limit of the set value is exceeded, although it benefits theultra-thin development of lenses, but the positive refractive power ofthe first lens L1 will be too strong, problem like aberration isdifficult to be corrected, and it is also unfavorable for wide-angledevelopment of lens. On the contrary, if the lower limit of the setvalue is exceeded, the positive refractive power of the first lens L1becomes too weak, it is then difficult to develop ultra-thin lenses.Preferably, the following condition shall be satisfied, 0.7

f1/f

1.0.

The refractive index of the first lens L1 is defined as n1. Here thefollowing condition should satisfied: 1.7

n1

2.2. This condition fixes the refractive index of the first lens L1, andrefractive index within this range benefits the ultra-thin developmentof lenses, and it also benefits the correction of aberration.Preferably, the following condition shall be satisfied, 1.7

n1

1.9.

The refractive index of the fifth lens L5 is defined as n5. Here thefollowing condition should satisfied: 1.7

n5

2.2. This condition fixes the refractive index of the fifth lens L5, andrefractive index within this range benefits the ultra-thin developmentof lenses, and it also benefits the correction of aberration.Preferably, the following condition shall be satisfied, 1.7

n5

1.9.

The thickness on-axis of the first lens L1 is defined as d1, and thetotal optical length of the camera optical lens 10 is defined as TTL.The following condition: 0.052

d1/TTL

0.2 should be satisfied. This condition fixes the ratio between thethickness on-axis of the first lens L1 and the total optical length TTL.When the condition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.07

d1/TTL

0.1 shall be satisfied.

In this embodiment, the first lens L1 has a positive refractive powerwith a convex object side surface relative to the proximal axis and aconcave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 isdefined as R1, the curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies the following condition: −3.65

(R1+R2)/(R1−R2)

−1.19, which fixes the shape of the first lens L1, when the value isbeyond this range, with the development into the direction of ultra-thinand wide-angle lenses, problem like aberration of the off-axis pictureangle is difficult to be corrected. Preferably, the condition −2.28

(R1+122)/(R1−R2)

−1.48 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. Thefollowing condition: 0.22

d1

0.68 should be satisfied. When the condition is satisfied, it isbeneficial for realization of the ultra-thin lens. Preferably, thecondition 0.35

d1

0.55 shall be satisfied.

In this embodiment, the second lens L2 has a negative refractive powerwith a convex object side surface and a concave image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the second lens L2 is f2. The following condition should besatisfied: −4.58

f2/f

−1.46. When the condition is satisfied, the negative refractive power ofthe second lens L2 is controlled within reasonable scope, the sphericalaberration caused by the first lens L1 which has positive refractivepower and the field curvature of the system then can be reasonably andeffectively balanced. Preferably, the condition −2.87

f2/f

−1.82 should be satisfied.

The curvature radius of the object side surface of the second lens L2 isdefined as R3, the curvature radius of the image side surface of thesecond lens L2 is defined as R4. The following condition should besatisfied: 1.34

(R3+R4)/(R3−R4)

4.35, which fixes the shape of the second lens L2 and can effectivelycorrect aberration of the camera optical lens. Preferably, the followingcondition shall be satisfied, 2.14

(R3+R4)/(R3−R4)

3.48.

The thickness on-axis of the second lens L2 is defined as d3. Thefollowing condition: 0.12

d3

0.38 should be satisfied. When the condition is satisfied, it isbeneficial for realization of the ultra-thin lens. Preferably, thecondition 0.2

d3

0.3 shall be satisfied.

In this embodiment, the third lens L3 has a positive refractive powerwith a concave object side surface and a convex image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the third lens L3 is f3. The following condition should besatisfied: 1.13

f3/f

3.86, by which the field curvature of the system then can be reasonablyand effectively balanced. Preferably, the condition 1.8

f3/f

3.09 should be satisfied.

The curvature radius of the object side surface of the third lens L3 isdefined as R5, the curvature radius of the image side surface of thethird lens L3 is defined as R6. The following condition should besatisfied: 0.75

(R5+R6)/(R5−R6)

2.48, which is beneficial for the shaping of the third lens L3, and badshaping and stress generation due to extra large curvature of surface ofthe third lens L3 can be avoided. Preferably, the following conditionshall be satisfied, 1.2

(R5+R6)/(R5−R6)

1.98.

The thickness on-axis of the third lens L3 is defined as d5. Thefollowing condition: 0.35

d5

1.13 should be satisfied. When the condition is satisfied, it isbeneficial for realization of the ultra-thin lens. Preferably, thecondition 0.56

d5

0.91 shall be satisfied.

In this embodiment, the fourth lens L4 has a negative refractive powerwith a concave object side surface and a convex image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fourth lens L4 is f4. The following condition should besatisfied: −3.79

f4/f

−1.21, which can effectively reduce the sensitivity of lens group usedin camera and further enhance the imaging quality. Preferably, thecondition −2.37

f4/f

−1.51 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 isdefined as R7, the curvature radius of the image side surface of thefourth lens L4 is defined as R8. The following condition should besatisfied: −3.71

(R7+R8)/(R7−R8)

−1.20, by which, with the development into the direction of ultra-thinand wide-angle lenses, problem like aberration of the off-axis pictureangle is difficult to be corrected. Preferably, the following conditionshall be satisfied, −2.32 (R7+R8)/(R7−R8)

−1.51.

The thickness on-axis of the fourth lens L4 is defined as d7. Thefollowing condition: 0.15

d7

0.48 should be satisfied. When the condition is satisfied, it isbeneficial for realization of the ultra-thin lens. Preferably, thecondition 0.24

d7

0.38 shall be satisfied.

In this embodiment, the fifth lens L5 has a positive refractive powerwith a convex object side surface and a convex image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fifth lens L5 is f5. The following condition should besatisfied: 0.49

f5/f

1.54, which can effectively smooth the light angles of the camera andreduce the tolerance sensitivity. Preferably, the condition 0.78

f5/f

1.23 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 isdefined as R9, the curvature radius of the image side surface of thefifth lens L5 is defined as R10. The following condition should besatisfied: −1.51

(R9+R10)/(R9−R10)

−0.37, by which, the shape of the fifth lens L5 is fixed, further, withthe development into the direction of ultra-thin and wide-angle lenses,problem like aberration of the off-axis picture angle is difficult to becorrected. Preferably, the following condition shall be satisfied, −0.94

(R9+R10)/(R9−R10)

−0.47.

The thickness on-axis of the fifth lens L5 is defined as d9. Thefollowing condition: 0.26

d9

0.79 should be satisfied. When the condition is satisfied, it isbeneficial for realization of the ultra-thin lens. Preferably, thecondition 0.42

d9

0.63 shall be satisfied.

In this embodiment, the sixth lens L6 has a negative refractive powerwith a concave object side surface and a convex image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the sixth lens L6 is f6. The following condition should besatisfied: −1.60

f6/f

−0.52, which can effectively reduce the sensitivity of lens group usedin camera and further enhance the imaging quality. Preferably, thecondition −1.00

f6/f

−0.65 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 isdefined as R11, the curvature radius of the image side surface of thesixth lens L6 is defined as R12. The following condition should besatisfied: −2.83

(R11+1212)/(R11−R12)

−0.91, by which, the shape of the sixth lens L6 is fixed, further, withthe development into the direction of ultra-thin and wide-angle lenses,problem like aberration of the off-axis picture angle is difficult to becorrected. Preferably, the following condition shall be satisfied, −1.77

(R11+R12)/(R11−R12)

−1.14.

The thickness on-axis of the sixth lens L6 is defined as d11. Thefollowing condition: 0.13

d11

0.44 should be satisfied. When the condition is satisfied, it isbeneficial for realization of the ultra-thin lens. Preferably, thecondition 0.20

d11

0.36 shall be satisfied.

The focal length of the whole camera optical lens 10 is f, the combinedfocal length of the first lens L1 and the second lens L2 is f12. Thefollowing condition should be satisfied: 0.61

f12/f

1.87, which can effectively avoid the aberration and field curvature ofthe camera optical lens, and can suppress the rear focal length forrealizing the ultra-thin lens. Preferably, the condition 0.97

f12/f

1.49 should be satisfied.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 5.72 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 5.46 mm.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 2.27. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 2.22.

With such design, the total optical length TTL of the whole cameraoptical lens 10 can be made as short as possible, thus theminiaturization characteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surfaceof the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the following, the unitof the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd νd S1 ∞ d0= −0.200 R1 1.941 d1= 0.455 nd1 1.7130 ν1 53.87R2 6.652 d2= 0.046 R3 6.549 d3= 0.253 nd2 1.6448 ν2 22.44 R4 3.189 d4=0.391 R5 −18.957 d5= 0.705 nd3 1.5439 ν3 55.95 R6 −4.656 d6= 0.328 R7−3.604 d7= 0.317 nd4 1.6355 ν4 23.97 R8 −12.033 d8= 0.316 R9 3.816 d9=0.524 nd5 1.7130 ν5 53.87 R10 −13.510 d10= 0.830 R11 −1.491 d11= 0.296nd6 1.5352 ν6 56.12 R12 −9.179 d12= 0.350 R15 ∞ d13= 0.210 ndg 1.5168 νg64.17 R16 ∞ d14= 0.176

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the opticalfilter GF;

R14: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: The refractive index of the d line;

nd1: The refractive index of the d line of the first lens L1;

nd2: The refractive index of the d line of the second lens L2;

nd3: The refractive index of the d line of the third lens L3;

nd4: The refractive index of the d line of the fourth lens L4;

nd5: The refractive index of the d line of the fifth lens L5;

nd6: The refractive index of the d line of the sixth lens L6;

ndg: The refractive index of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −4.5185E−01  3.0060E−03 −6.2995E−03 −1.8916E−02  7.0816E−04−9.9368E−03   4.7159E−03 −7.6611E−03 R2  1.5355E+01 −1.2761E−01 9.0204E−02 −3.6394E−02 −3.5100E−02 7.0592E−03  4.7500E−03 −3.2906E−03R3  3.1052E+01 −1.5256E−01  1.9028E−01 −5.5824E−02 −2.7038E−025.4567E−03  9.0849E−03 −5.1562E−03 R4  5.5428E+00 −3.3790E−02 7.3255E−02 −2.6578E−02  2.0168E−02 −3.2721E−02   4.2103E−02 −2.1622E−02R5  0.0000E+00 −6.8809E−02 −1.5363E−02 −1.3862E−02 −1.1942E−023.4038E−02 −1.8936E−02  1.8443E−02 R6 −2.4305E+01 −7.4460E−02−1.9137E−02  1.0152E−02  6.5766E−03 −1.2850E−02   9.4210E−03 −1.1724E−03R7 −2.9537E+01 −1.2693E−01  7.1327E−02 −1.3760E−02 −2.1754E−042.5506E−03 −1.2825E−03  9.4631E−05 R8 −7.8418E+00 −1.2110E−01 5.9871E−02 −1.2133E−03 −2.1260E−03 −3.1964E−04   1.1448E−04 −1.3927E−06R9 −1.1238E+00 −6.0155E−02  7.4847E−04  6.0671E−04 −9.1888E−045.8063E−04 −1.9426E−04  2.0449E−05 R10  0.0000E+00  2.7076E−02−2.8764E−02  8.9405E−03 −1.5894E−03 1.6865E−04 −1.6725E−05  1.0829E−06R11 −1.7234E+00  2.2091E−02 −1.5703E−02  5.8171E−03 −9.9035E−048.9637E−05 −4.2319E−06  8.3989E−08 R12 −1.5768E+01  4.6159E−03−8.3231E−03  2.6504E−03 −5.1177E−04 5.2726E−05 −2.6549E−06  5.9698E−08

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 areaspheric surface indexes.

IH: Image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, P1R1 and P1R2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, P5R1 and P5R2 represent respectively theobject side surface and image side surface of the fifth lens L5, P6R1and P6R2 represent respectively the object side surface and image sidesurface of the sixth lens L6. The data in the column named “inflexionpoint position” are the vertical distances from the inflexion pointsarranged on each lens surface to the optic axis of the camera opticallens 10. The data in the column named “arrest point position” are thevertical distances from the arrest points arranged on each lens surfaceto the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.825 P1R2 1 0.375 P2R1 0 P2R2 0 P3R1 1 0.925 P3R2 11.085 P4R1 2 1.065 1.255 P4R2 2 1.015 1.545 P5R1 1 0.615 P5R2 0 P6R1 11.565 P6R2 1 2.605

TABLE 4 Arrest point number Arrest point position 1 P1R1 0 P1R2 1 0.685P2R1 0 P2R2 0 P3R1 0 P3R2 0 P4R1 0 P4R2 0 P5R1 1 1.055 P5R2 0 P6R1 12.575 P6R2 1 2.955

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486 nm, 588 nm and656 nm passes the camera optical lens 10 in the first embodiment. FIG. 4shows the field curvature and distortion schematic diagrams after lightwith a wavelength of 588 nm passes the camera optical lens 10 in thefirst embodiment, the field curvature S in FIG. 4 is a field curvaturein the sagittal direction, T is a field curvature in the meridiandirection.

Table 13 shows the various values of the embodiments 1, 2 and 3 and thevalues corresponding with the parameters which are already specified inthe conditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.97 mm, the full vision field image height is 3.928 mm, thevision field angle in the diagonal direction is 83.71°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

(Embodiment 2)

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd νd S1 ∞ d0= −0.200 R1 1.967 d1= 0.446 nd1 1.7130 ν1 53.87R2 7.002 d2= 0.049 R3 6.767 d3= 0.253 nd2 1.6448 ν2 22.44 R4 3.210 d4=0.382 R5 −20.812 d5= 0.739 nd3 1.5439 ν3 55.95 R6 −4.350 d6= 0.329 R7−3.553 d7= 0.300 nd4 1.6355 ν4 23.97 R8 −11.988 d8= 0.318 R9 3.730 d9=0.524 nd5 1.7410 ν5 52.64 R10 −24.794 d10= 0.842 R11 −1.508 d11= 0.253nd6 1.5352 ν6 56.12 R12 −9.747 d12= 0.350 R15 ∞ d13= 0.210 ndg 1.5168 νg64.17 R16 ∞ d14= 0.174

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −5.4758E−01  1.0688E−03 −6.7911E−03 −2.2719E−02 −3.0922E−03−8.8322E−03   7.0878E−03 −9.1276E−03 R2  1.3221E+01 −1.2802E−01 8.6096E−02 −3.8063E−02 −3.3803E−02 9.1383E−03  4.4829E−03 −3.8983E−03R3  3.0251E+01 −1.4948E−01  1.9441E−01 −5.8376E−02 −2.6360E−028.4456E−03  1.2310E−02 −7.5224E−03 R4  5.6783E+00 −3.2006E−02 7.4453E−02 −2.4600E−02  1.8834E−02 −3.4823E−02   4.1816E−02 −1.8035E−02R5  0.0000E+00 −6.4834E−02 −1.4389E−02 −1.4671E−02 −1.1134E−023.5598E−02 −1.7506E−02  1.8497E−02 R6 −2.9538E+01 −7.8540E−02−1.7887E−02  1.1642E−02  6.4964E−03 −1.3429E−02   9.2039E−03 −1.0794E−03R7 −3.3653E+01 −1.2390E−01  7.1452E−02 −1.3840E−02 −2.8103E−042.5250E−03 −1.2736E−03  1.1073E−04 R8 −2.4442E+01 −1.2003E−01 5.9973E−02 −1.2786E−03 −2.1424E−03 −3.2468E−04   1.1314E−04 −1.6961E−06R9 −2.0973E+00 −6.2094E−02  1.1198E−03  4.5414E−04 −9.4257E−045.9386E−04 −1.9157E−04  1.9062E−05 R10  0.0000E+00  2.1893E−02−2.8054E−02  8.9453E−03 −1.5935E−03 1.6831E−04 −1.6467E−05  1.1651E−06R11 −1.7591E+00  2.2223E−02 −1.5700E−02  5.8167E−03 −9.9041E−048.9635E−05 −4.2322E−06  8.4220E−08 R12 −1.3029E+01  4.8779E−03−8.2647E−03  2.6549E−03 −5.1157E−04 5.2727E−05 −2.6555E−06  5.9625E−08

Table 7 and table 8 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in embodiment 2 of thepresent invention.

TABLE 7 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.805 P1R2 1 0.355 P2R1 0 P2R2 0 P3R1 1 0.915 P3R2 11.095 P4R1 2 1.035 1.285 P4R2 2 1.005 1.525 P5R1 1 0.595 P5R2 0 P6R1 11.555 P6R2 1 2.585

TABLE 8 Arrest point number Arrest point position 1 P1R1 0 P1R2 1 0.645P2R1 0 P2R2 0 P3R1 0 P3R2 0 P4R1 0 P4R2 0 P5R1 1 1.035 P5R2 0 P6R1 12.555 P6R2 1 2.935

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486 nm, 588 nm and656 nm passes the camera optical lens 20 in the second embodiment. FIG.8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 588 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.954 mm, the full vision field image height is 3.928 mm, thevision field angle in the diagonal direction is 84.16°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

(Embodiment 3)

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 9 and table 10 show the design data of the camera optical lens 30in embodiment 3 of the present invention.

TABLE 9 R d nd νd S1 ∞ d0= −0.200 R1 1.993 d1= 0.437 nd1 1.7410 ν1 52.64R2 6.889 d2= 0.047 R3 7.058 d3= 0.246 nd2 1.6448 ν2 22.44 R4 3.213 d4=0.382 R5 −21.443 d5= 0.754 nd3 1.5439 ν3 55.95 R6 −4.270 d6= 0.326 R7−3.478 d7= 0.304 nd4 1.6355 ν4 23.97 R8 −12.097 d8= 0.326 R9 3.686 d9=0.526 nd5 1.7410 ν5 52.64 R10 −26.489 d10= 0.836 R11 −1.505 d11= 0.262nd6 1.5352 ν6 56.12 R12 −8.796 d12= 0.350 R15 ∞ d13= 0.210 ndg 1.5168 νg64.17 R16 ∞ d14= 0.165

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −5.4739E−01  5.0147E−04 −6.8324E−03 −2.3497E−02 −4.2466E−03−8.3140E−03   8.1663E−03 −1.0044E−02 R2  1.3168E+01 −1.2736E−01 8.4639E−02 −3.8075E−02 −3.3065E−02 9.1287E−03  3.7696E−03 −3.7679E−03R3  3.1921E+01 −1.4871E−01  1.9752E−01 −5.7311E−02 −2.7017E−028.3355E−03  1.2851E−02 −8.1207E−03 R4  5.7595E+00 −2.9041E−02 7.4000E−02 −2.5261E−02  1.8383E−02 −3.4788E−02   4.1910E−02 −1.8290E−02R5  0.0000E+00 −6.3622E−02 −1.4976E−02 −1.5067E−02 −1.1804E−023.5787E−02 −1.7509E−02  1.8875E−02 R6 −2.8969E+01 −7.8071E−02−1.7736E−02  1.1707E−02  6.5390E−03 −1.3478E−02   9.1582E−03 −1.0926E−03R7 −3.1845E+01 −1.2452E−01  7.1637E−02 −1.3787E−02 −2.6973E−042.5160E−03 −1.2755E−03  1.0993E−04 R8 −3.5975E+01 −1.2014E−01 5.9895E−02 −1.2821E−03 −2.1414E−03 −3.2226E−04   1.1404E−04 −1.6530E−06R9 −2.2251E+00 −6.1851E−02  9.9233E−04  5.0690E−04 −9.3694E−045.9735E−04 −1.9130E−04  1.8700E−05 R10  0.0000E+00  2.0557E−02−2.7882E−02  8.9566E−03 −1.5926E−03 1.6790E−04 −1.6536E−05  1.1553E−06R11 −1.7591E+00  2.2183E−02 −1.5705E−02  5.8164E−03 −9.9042E−048.9635E−05 −4.2321E−06  8.4290E−08 R12 −1.2574E+01  4.8907E−03−8.2606E−03  2.6550E−03 −5.1157E−04 5.2724E−05 −2.6558E−06  5.9631E−08

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.795 P1R2 1 0.355 P2R1 0 P2R2 0 P3R1 1 0.915 P3R2 11.095 P4R1 2 1.035 1.285 P4R2 2 1.005 1.535 P5R1 1 0.605 P5R2 0 P6R1 11.555 P6R2 1 2.585

TABLE 12 Arrest point number Arrest point position 1 P1R1 0 P1R2 1 0.645P2R1 0 P2R2 0 P3R1 0 P3R2 0 P4R1 0 P4R2 0 P5R1 1 1.035 P5R2 0 P6R1 12.565 P6R2 1 2.935

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486 nm, 588 nm and656 nm passes the camera optical lens 30 in the third embodiment. FIG.12 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 588 nm passes the camera optical lens 30 inthe third embodiment.

As shown in Table 13, the third embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.948 mm, the full vision field image height is 3.928 mm, thevision field angle in the diagonal direction is 84.35°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment 1 Embodiment 2 Embodiment 3 f 4.335 4.298 4.285 f13.695 3.700 3.645 f2 −9.937 −9.742 −9.383 f3 11.155 9.953 9.653 f4−8.216 −8.058 −7.788 f5 4.226 4.410 4.399 f6 −3.371 −3.369 −3.436 f125.277 5.347 5.338 (R1 + R2)/(R1 − R2) −1.824 −1.781 −1.814 (R3 + R4)/(R3− R4) 2.899 2.805 2.671 (R5 + R6)/(R5 − R6) 1.651 1.528 1.497 (R7 +R8)/(R7 − R8) −1.855 −1.842 −1.807 (R9 + R10)/ −0.560 −0.738 −0.756 (R9− R10) (R11 + R12)/ −1.388 −1.366 −1.413 (R11 − R12) f1/f 0.852 0.8610.851 f2/f −2.292 −2.266 −2.190 f3/f 2.573 2.316 2.252 f4/f −1.895−1.875 −1.817 f5/f 0.975 1.026 1.027 f6/f −0.778 −0.784 −0.802 f12/f1.217 1.244 1.246 d1 0.455 0.446 0.437 d3 0.253 0.253 0.246 d5 0.7050.739 0.754 d7 0.317 0.300 0.304 d9 0.524 0.524 0.526 d11 0.296 0.2530.262 Fno 2.200 2.200 2.200 TTL 5.198 5.168 5.172 d1/TTL 0.087 0.0860.084 n1 1.7130 1.7130 1.7410 n2 1.6448 1.6448 1.6448 n3 1.5439 1.54391.5439 n4 1.6355 1.6355 1.6355 n5 1.7130 1.7410 1.7410 n6 1.5352 1.53521.5352

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A fixed focal length camera optical lenscomprising, from an object side to an image side in sequence: a firstlens, a second lens, a third lens, a fourth lens, a fifth lens, and asixth lens; the third lens has a concave object side surface and aconvex image side surface, wherein the camera optical lens furthersatisfies the following conditions:0.5

f1/f

10;1.7

n1

2.2;1.7

n5

2.2;0. 052

d1/TTL

0.2;1. 13

f3/f

3.86;0. 75

(R5+R6)/(R5-R6)

2.48;0. 35 mm

d5

1.13 mm; where f: the focal length of the camera optical lens; f1: thefocal length of the first lens; n1: the refractive index of the firstlens; n5: the refractive index of the fifth lens; d1: the thicknesson-axis of the first lens; TTL: the total optical length from the mostobject side lens of the camera optical lens to the image plane of thecamera optical lens; f3: the focal length of the third lens; R5: thecurvature radius of the object side surface of the third lens; R6: thecurvature radius of the image side surface of the third lens; d5: thethickness on-axis of the third lens.
 2. The camera optical lens asdescribed in claim 1, wherein the first lens is made of glass material,the second lens is made of plastic material, the third lens is made ofplastic material, the fourth lens is made of plastic material, the fifthlens is made of glass material, the sixth lens is made of plasticmaterial.
 3. The camera optical lens as described in claim 1, whereinfirst lens has a positive refractive power with a convex object sidesurface and a concave image side surface; the camera optical lensfurther satisfies the following conditions:−3.65 5

(R1+R2)/(R1-R2)

−1.19;0.22 mm

d1

0.68 mm; where R1: the curvature radius of object side surface of thefirst lens; R2: the curvature radius of image side surface of the firstlens; d1: the thickness on-axis of the first lens.
 4. The camera opticallens as described in claim 1, wherein the second lens has a convexobject side surface and a concave image side surface; the camera opticallens further satisfies the following conditions:−4.58

f2/f

−1.46;1.34

(R3+R4)/(R3−R4)

4.35;0.12 mm

d3

0.38 mm; where f: the focal length of the camera optical lens; f2: thefocal length of the second lens; R3: the curvature radius of the objectside surface of the second lens; R4: the curvature radius of the imageside surface of the second lens; d3: the thickness on-axis of the secondlens.
 5. The camera optical lens as described in claim 1, wherein thefourth lens has a negative refractive power with a concave object sidesurface and a convex image side surface; the camera optical lens furthersatisfies the following conditions:−3.79

f4/f

−1.21;−3.71(R7+R8)/(R7−R8)

−1.20;0.15 mm

d7

0.48 mm; where f: the focal length of the camera optical lens; f4: thefocal length of the fourth lens; R7: the curvature radius of the objectside surface of the fourth lens; R8: the curvature radius of the imageside surface of the fourth lens; d7: the thickness on-axis of the fourthlens.
 6. The camera optical lens as described in claim 1, wherein thefifth lens has a positive refractive power with a convex object sidesurface and a convex image side surface; the camera optical lens furthersatisfies the following conditions:0.49

f5/f

1.54;−1.51

(R9+R10)/(R9-R10)

−0.37;0.26 mm

d9

0.79 mm; where f: the focal length of the camera optical lens; f5: thefocal length of the fifth lens; R9: the curvature radius of the objectside surface of the fifth lens; R10: the curvature radius of the imageside surface of the fifth lens; d9: the thickness on-axis of the fifthlens.
 7. The camera optical lens as described in claim 1, wherein thesixth lens has a negative refractive power with a concave object sidesurface and a convex image side surface; the camera optical lens furthersatisfies the following conditions:−1.60

f6/f

−0.52;−2.83

(R11+R12)/(R11-R12)

−0.91;0.13 mm

d11

0.44 mm; where f: the focal length of the camera optical lens; f6: thefocal length of the sixth lens; R11: the curvature radius of the objectside surface of the sixth lens; R12: the curvature radius of the imageside surface of the sixth lens; dll: the thickness on-axis of the sixthlens.
 8. The camera optical lens as described in claim 1 , furtherhaving no intervening lenses between the first lens and the second lens,and further satisfying the following condition:0. 61

f12/f

1.87; where f1 2: the combined focal length of the first lens and thesecond lens; f: the focal length of the camera optical lens.
 9. Thecamera optical lens as described in claim 1, wherein the total opticallength TTL of the camera optical lens is less than or equal to 5.72 mm.10. The camera optical lens as described in claim 1, wherein theaperture F number of the camera optical lens is less than or equal to2.27.